Blar i SINTEF Open på forfatter "Kriezi, Ekaterini E."
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Development and performance mapping of a multi-ejector expansion work recovery pack for R744 vapour compression units
Banasiak, Krzysztof; Hafner, Armin; Kriezi, Ekaterini E.; Madsen, Kenneth B.; Birkelund, Michael; Fredslund, Kristian; Olsson, Rickard (Peer reviewed; Journal article, 2015)A multi-ejector expansion pack, intended as a substitute for a standard high-pressure electronic expansion valve (HPV), was designed, manufactured and experimentally investigated. Four different ejector cartridges were ... -
Modelling and development of high-pressure-lift ejector for low temperature evaporators in R744 refrigeration systems for supermarkets
Banasiak, Krzysztof; Pardiñas, Ángel Á.; Kriezi, Ekaterini E. (Actes du ... Congres international du froid;ICR2019, Chapter; Peer reviewed, 2019) -
Modelling and development of high-pressure-lift ejector for low temperature evaporators in R744 refrigeration systems for supermarkets
Banasiak, Krzysztof; Pardiñas, Ángel Á.; Kriezi, Ekaterini E. (Actes du ... Congres international du froid;2019, Chapter; Peer reviewed, 2019) -
Multi-Ejector Concept: A Comprehensive Review on its Latest Technological Developments
Gullo, Paride; Hafner, Armin; Banasiak, Krzysztof; Minetto, Silvia; Kriezi, Ekaterini E. (Journal article; Peer reviewed, 2019)The adoption of the EU F-Gas Regulation 517/2014 and the resulting development of the multi-ejector concept have led carbon dioxide to take center stage as the sole refrigerant (R744) in several applications. Therefore, a ... -
Performance of integrated R744 packs part 2 : ejectors performance, a comparison of data-driven model from onsite measurements with rom model predictions
Khorshidi, Vahid; Kriezi, Ekaterini E.; Schlemminger, Christian; Hafner, Armin (Sciences et technique du froid;2021/1, Peer reviewed; Journal article, 2021)Rising concerns for climate change impacts along with the new legislation aimed at lowering emissions indicates the inevitable transition in the cooling/heating industry towards a more energy-efficient solution with minimal ... -
Performance of integrated R744-packs part 1: compressor mass flow estimation based on data-driven models using analytical methods and actual field measurements
Khorshidi, Vahid; Kriezi, Ekaterini E.; Schlemminger, Christian; Hafner, Armin; Söylemez, Engin (Sciences et technique du froid;2021/1, Peer reviewed; Journal article, 2021)Rising concerns for climate change impacts along with the new legislation aimed at lowering emissions indicates the inevitable transition in the cooling/heating industry towards a more energy-efficient solution with minimal ... -
Performance operation of liquid ejectors for a R744 integrated multi-ejector supermarket system using a hybrid ROM
Haida, Michal; Smolka, Jacek; Hafner, Armin; Palacz, Michal; Ostrowski, Zeimowit; Bodys, Jakub; Kriezi, Ekaterini E.; Försterling, Sven; Nowak, Andrzej J.; Banasiak, Krzysztof (Peer reviewed; Journal article, 2019)Performance maps were generated for designed liquid ejectors installed in a multi-ejector module in an R744 integrated supermarket system using a hybrid of the reduced-order model (ROM). Hybrid ROMs of the investigated ...